Service manual
7020
may spike up momentarily then drop back down to 0V DC.
5. If 0V DC is measured, power the copier OFF, disconnect CN912 and then recheck CN912-1
(PRDB side) in the 47 multimode (power the copier ON, while pressing the 4 and 7 keys). Input
code 42, press *01, if 24V DC is still not present then reseat all connectors on the PRDB.
6. Repeat steps 1 through 4, if 24V DC is still not present on CN912-1, replace the PRDB (p/n
26NA-9022) and FM3 (optical unit cooling fan) (p/n 26NA-7390) as a set.
7. If 24V DC is measured at any point, but still no FM3 operation, replace FM3 (optical unit cooling
fan) (p/n 26NA-7390).
IT101, general information.DESCRIPTION: SOLUTION ID:
106639
SOLUTION:
The IT101 (PCUA 950255), is an optional Inner Exit Tray and is the newest accessory available
with the 7020. The IT101 has 2 non-sorting trays: tray 1 holds up to 50 sheets and tray 2 up to 100
sheets. Customers can select what tray they want their fax, copy or print jobs to be sent.
Notes:
1. The 7020 minimum firmware requirements, to allow the use of the IT101, are level 29 System
and 26 Image.
2. The IT101 is only compatible with 7020's beginning with serial number 26NE15735 and above.
USAGE:
10
Incorrect paper size detection from the bypass tray.DESCRIPTION: SOLUTION ID:
109025
SOLUTION:
CAUSE: Incorrect paper size data is stored in memory. The side guides in the bypass tray are
connected to a variable resistor (VR1) that provides an analog signal to the Printer driver board.
This analog signal is then compared to data that is stored in memory, which corresponds to a paper
size.
SOLUTION: To adjust bypass tray size detection, perform the following:
1. Insert an 8.5x11R sheet of paper in the bypass tray with the side guides against the paper.
2. Access the 47 mode (power the copier ON while pressing the 4 and 7 keys).
3. Enter output code 28.
4. Press the START button.
5. Power copier OFF/ON to return to normal copy mode.
USAGE:
10
FS107, REMOVE COPIES FROM FINISHER TRAY THEN PRESS START will not clear.DESCRIPTION: SOLUTION ID:
113518
SOLUTION:
CAUSE: One or more of the 6-paper exit detect actuators (p/n 13GQ48260) is bound/hung up in
the actuated position and is constantly activating the paper exit detect sensor (PS703).
SOLUTION: Repair the bind with the paper exit detect actuators and ensure that the move freely.
To test PS703 in diagnostics, perform the following:
1. Access the 47 mode (power the copier ON while pressing the 4 and 7 keys).
2. Enter output code 70, *-005-* (finisher tray up/down motor).
3. Press the START button, the trays will rise up.
4. Press the STOP/CLEAR button after the top tray has raised up approximately 2 inches and
cleared the 6 paper exit actuators.
5. Enter input code 70, *-002-*, (PS703).
6. From this position PS703 should be in the ON state and toggle to OFF when any of the 6 paper
exit actuators are actuated.
Note: PS703 is normally OFF (actuated) when the FS107 is in the idle state but it must be able to
change to ON (not actuated) when the FS107 initializes.
USAGE:
10
Varying lead edge from all paper trays.DESCRIPTION: SOLUTION ID:
115782
SOLUTION:
CAUSE: MC2 (loop clutch) is dirty/contaminated.
SOLUTION: Thoroughly clean MC2 (loop clutch) with alcohol and a soft cloth, replace as
necessary (p/n 26NA82020).
USAGE:
10
Black lines, marks, spots and/or streaks on copies.DESCRIPTION: SOLUTION ID:
126536
SOLUTION:
CAUSE: Failed charge wire and charging control plate.
SOLUTION: Replace the Charge wire (p/n 26NA25060) and Charging control plate (p/n
26NA25160).
USAGE:
10
Intermittent jamming, popping noises, and premature wear of the paper feed gears.DESCRIPTION: SOLUTION ID:
139016
SOLUTION:
CAUSE: Loose or bent shaft on the (upper tray) driving auxiliary panel/r assembly (item A on page
16 of the 7020/7025/7030 parts book) or (lower tray) driving auxiliary panel L/C assembly (page 18
of the 7020/7025/7030 parts book).
USAGE:
10
26
Copyright 2005, Konica Minolta Business Solutions U.S.A., Inc.
May 2005